Contribution of definition the relationship among five species of Poa L. (Poaceae) depending on the morphological features and leaf epidermal structure


Abstract in English

Five species of the genus Poa L. from (Poaceae) were collected and studied in Lattakia, they are : P. annua ، P.infirma ، P. pratensis ، P. bulbosa ،P. nemoralis. This study put data base of the morphological features which included : habit, leaves, ligule, the structure of the inflorescence , spikelet, floret, micro-morphological characteristics which contained the epidermal structure of abaxial leaf surface, and the difference between costal and inter-costal zones of the 5 species, studying of pollen grain clarified the similarity in shape but there was a simple difference in measurements . Then , data from micro and macro morphological study were used to made a Dendrogram by using Statistica . The dendrogram showed the linkage of two annual species P. annua ، P.infirma in a cluster , every one of three another species had his specific cluster , P. nemoralis was closer to the annual species .

References used

ABOU-TALEB, S.M. ; Abd- Elmaksoud, H.S. Comparative studies on four cereal genotypes 2- Micromolphological Characteristics of leaf and grain by using S.E.M., New york science journal , 6, (12) , 2013 , 186-192
AHMAD, F. Taxonomic Studies Of Grasses Of Salt Range Of Pakistan, Doctor Of Philosophy, Thesis Submitted to the Quaid-I-Azam University, Islamabad, Pakistan, 2009, 378
AHMAD, F.; KHAN, M. A.; AHMAD, M.; ZAFAR, M.; IQBAL, Z.; KHAN, A. Leaf epidermal anatomy as an aid to the identification of genus Setaria weeds, tribe paniceae (Poaceae), from the salt range of Pakistan , Journal of Medicinal Plants Research Vol. 5(15), 2011, pp. 3500-3506

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